Which component of grass leaves is responsible for water retention and nutrient transport?

Study for the Washington Turf and Ornamental Weed Management Test. Utilize flashcards and multiple-choice questions, each equipped with hints and explanations. Prepare effectively for your exam!

The sheath is a critical component of grass leaves that plays a significant role in water retention and nutrient transport. In grass plants, the sheath wraps around the stem (culm) and connects the leaf blade to it. This tube-like structure helps to hold moisture and creates a barrier that retains water within the leaf structure, which is vital for the plant's overall hydration.

Additionally, the sheath contains vascular tissues—xylem and phloem—that facilitate the movement of water, nutrients, and sugars throughout the plant. The xylem transports water and minerals absorbed from the soil, while the phloem carries the products of photosynthesis from the leaves to other parts of the plant. This efficient transport system is crucial for the grass's growth and health.

While the blade and ligule also contribute to the plant's functionality, they do not serve primarily the purpose of water retention and nutrient transport. The blade is the flat, photosynthetic part of the leaf, and the ligule is a small structure at the base of the blade that can regulate water loss but does not play a direct role in transporting nutrients. The stem, while essential in supporting the plant, is not the component that specifically focuses on the water retention and nutrient transport functions as the sheath

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy